/*.tip_slide_down {
	-webkit-animation-name: slide_down;
	-webkit-animation-duration: 500ms;
	-webkit-animation-fill-mode: forwards;
}
@-webkit-keyframes slide_down {
	from {top:-4em;}
	to {top:0em;}
}
.tip_slide_up {
	-webkit-animation-name: slide_up;
	-webkit-animation-duration: 500ms;
	-webkit-animation-fill-mode: forwards;
	-webkit-animation-delay: 3s;
}
@-webkit-keyframes slide_up {
	from {top:0em;}
	to {top:-4em;}
}
*/
#top_tip {transition:500ms top;}